From 21e93c1e7dae0e8b1914a522c331f0f7763fa89d Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 9 Jan 2013 10:17:12 +0200
Subject: [PATCH] dw_dmac: remove redundant check

There is no need to check the callback_required parameter, due to we check the
callback pointer to be a non-NULL.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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